Q:

What are the symptoms of a dirty throttle body?

A:

The symptoms of a dirty throttle body include rough idle, poor gas mileage, faulty CEL codes, stalling and poor acceleration. Poor gas mileage is the result of the vehicle's ECU, or computer, attempting to adjust the fuel mixture to compensate for throttle plates that are incapable of closing properly. Faulty CEL codes cause various sensor-related issues, such as an illuminated check engine light.

A vehicle with a dirty throttle body experiences difficulty accelerating smoothly. Slowed and uneven acceleration is an indicator of a dirty throttle body. This automotive issue results in a hard gas pedal that requires more pressure to push down.

If the engine idles erratically or sputters when speeding up and slowing down, then the throttle body may require cleaning. Checking gas mileage is a way to diagnose a dirty throttle body. If a vehicle starts getting fewer miles to the gallon, then the throttle body requires cleaning.

The throttle body is a component of the air intake system, and a dirty throttle body can lead to air pollution. This issue leaves excess combustion products within the exhaust, which coats the inside of the throttle body. As a result, a dirty throttle body leads to poor performance and engine stalling.

Learn More

Related Questions

  • Q:

    What can be done to stop engine pinging?

    A:

    Pinging in an engine is the result of the air and fuel mixture within an engine cylinder igniting incorrectly, explains Cars Direct. This may be caused by using gasoline with an insufficient octane rating, carbon buildup within the cylinder itself or improperly functioning spark plugs.

    Full Answer >
    Filed Under:
  • Q:

    What is valve overlap?

    A:

    Valve overlap is the period during the valve timing where both the intake and exhaust valves are open. Occurring towards the end of the exhaust stroke, the intake valves are opened just before all the exhaust gases are released, providing more time for the intake air to enter the engine.

    Full Answer >
    Filed Under:
  • Q:

    How do you reset the check engine light on a Dodge?

    A:

    To reset the check engine light on a Dodge, open the hood, disconnect the battery, turn all of the lights on, honk the horn to exhaust the residual power, and reconnect the battery. This 30-minute procedure requires the vehicle key, ear protection and rubber gloves.

    Full Answer >
    Filed Under:
  • Q:

    What are the signs of a bad master cylinder?

    A:

    Signs of a bad master cylinder are having to push down the brake pedal much farther and harder than usual to slow down and stop. The master brake cylinder's job is to help provide stopping power.

    Full Answer >
    Filed Under:

Explore